Reinforcement of machine reliability through vibration analysis : Appendices: cepstrum concepts

Appendices: cepstrum concepts
Reinforcement of machine reliability through vibration analysis

Author : Alain BOULENGER

Review date: November 25, 2020 | Lire en français

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7. Appendices: cepstrum concepts

There are generally two definitions of cepstrum.

The first, particularly appropriate for vibratory signals, defines it as the inverse Fourier transform of the decimal logarithm of its direct Fourier transform (complex spectrum):
$C [s (t)] = C (τ) = {TF}^{- 1} [lg TF [s (t)]]$

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Appendices: cepstrum concepts

BIGRET (R.), FERON (J.l.), PACHAUD (C.) - Diagnostic maintenance, disponibilité des machines tournantes, modèles, mesurage, analyse des vibrations. - Masson (1994).
BOULENGER (A.) - Vers le zéro panne avec...

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